frederick sedgwick



(No Model.)

PMSEDGWIOK. ELECTRICAL MECHANISM FOR OPERATING. SAFE BOLT WORK.

Patented'Oot. 27, 1885.

i021 eJa-Z'or QQMA ulu.

,, ilNrTnn STATES PATENT OFFICE.

, FREDERICK SEDGWIGK, l

sLEcTniCAL on CHICAGO, ILLINOIS.

MECHANISM FOR'OPERATING SAFE BOLT-WORK.

SPECIFICATION forming part of Letters Patent N 0. 329,222. dated October 27, 1885.

dpplication filed March 10, [885.

I all whom it may concern:

Be it known that I, FREDERICK SEDGWICK, of Chicago, in the county of Coolrand State of Illinois, have invented certain newand uses ful Improvements in Electrical Mechanism ,for OperatingSafe Bolt-Work,of which the following is a description, reference being had to the accompanying drawings, in which Figure 1 is a longitudinal vertical sectional view of said device as viewed from the rear, together with aportion of the usual safe boltwork. Fig. 2 is a vertical sectional view "of a safe-door, showing said mechanism applied thereto. Fig. 3 is a horizontal sectional view in detail on the line at a, 'Fig. 1; and Fig. dis a modification in detail of the construction shown in Figs. 1 and 3.

Like letters of reference indicate like parts in the different figures. The object of my invention is to provide a mechanism whereby the bolt-work of safes and vaults may be thrown or retracted "by means of compressed air acting upon a suitable pie ton, diaphragm, or other equivalent device connected with the bolt-work, said compressed air being liberated to act upon said mechanism intended to be directly actuated thereby by means of a suitable valve operated by one or more electronagnets having electrical connections with the outside of the safe, from whence and by which said mechanism may be manipulated, substantially in the manner hereinafter more particularly described and claimed.

In the drawings, A represents an airtight compartment or case constructed from brass or other suitable material, and attached to the inside of the safe-door B, Fig. 2, by means of-bolts or screws. A plate or cap, a, screwed to said case and having an airtight or hermetically sealed joint, may serve to give access to the interior of said compartment.

Preferably within, so as to make the same more compact in form, I place a cylinder, 0, which,with the piston 0, rod 0, handlever c, pivotally connected by means of the link a, as shown, to the stud 0, cast or otherwise at tached to said case, forms an air-pump, said cylinder having a cap, 0 at the top, to serve as a guide for the piston-rod, an opening, 0, being made therein for the admission of air, and said. cylinder and piston respectively wires h h Serial No. isafiov. (No model.)

being provided with valves 0 a adjusted, as shown, so that the movement up and down of the lever 0" serves to compress a volume of air into the compartment A. Preferably within said case I also with a piston, (1, having piston-rod d, which passes through the -end'of said cylinder and the wall of the case A, (to which said cylinder is attached) the opposite end of said piston-rod being rigidly connected with the usual bolt-bar, E. Said cylinder is provided with ports (2 (i communicating with the compartment A, which are opened means of a two-way cock or valve, F, having ports f f, so placed that a partial revolution of said valve serves to open one port while the other is closed. A notch, f in said valve likewise serves to connect the ports with an exhaust-pipej, Figs. 1 and 3, leading to the I outside of the case A.

and closed by Rigidly connected with the axis of the valve F are cross-bars armatures GG in suitable proximity to the poles of electro-magnets H H to be attracted ff, to which are attached j thereby. Wires hhare connected with said magnets, respectively, and with binding-posts J J, secured to the are carried through the doorof the safe, as clearly shown in Fig. 2, and connected case A, from which posts I with the usual push-buttons, K K, which are in turn connected by wires It It to a batterycup, L, the circuit-wire 7a of which connects with a binding-post,L,having metallic contact with the safe-door B, as shown in said Fig. 2. The terminal wires If h, Fig. 1, of said magnets are also connected with the case A'by a screw, h thus completing the electrical circuit through the body of the door B with one or the other of said magnets and the battery by means of the button with which said magnet is connected.

The operation of said mechanism is as follows: Assuming the safe-door to be open, the operator first works the air-pump, thus compressing a volume of airwithin the compartment 'A. The door is then closed, and by pressing the button K the magnet H is excited and attracts the armature G, thus opening the port d" and admittingthc compressed,

air confined in the caseA to the back of the piston 1), thereby forcing the latter forward and throwing the bolt-work, as indicated.

Upon pressing the button K'the operation is reversed, the a-rmatureG being attracted, thus rotating the valve F, while the compressed air behind the piston Dis released through the pipe f which permits abaclrward movement of the piston. Hence so long as a volume of air is compressed within the compartment A the alternate pressure upon the buttons. K K,

as described, will throw or retract said boltwork at will. When the safe is closed and the bolt-work thrown, it may be blocked by means of any well-known obstruction mechanism, and retained in place or released by a suitable look.

It is obvious that instead of employing two magnets for operating the valve F a single magnet may be used to move the same in one direetionas, for example, H', Fig.4-while a wire spring, H may be employed to reverse said movement, which mechanism I regard as an inferior equivalent of the construction.-

above described.

Having thus described my invention, what I claim as new is a 1. An electrical mechanism for operating safe bolt-work, consisting of an air-chamber and a battery-cup, whereby said magnets may be alternately excited, substantially as and for the purposes specified.

2. An electrical mechanism for operating ated, whereby a volume of compressed air is admitted from a suitable receptacle to a cylinder having a piston connectedwith the boltwork, substantially as described,and for the purposes set forth.

3. The combination, with theusual multiple safe bolt-work, of an air-chamber arranged within the safe,- with means for compressing air therein, a cylinder communicating with said chamber, the piston of which is connected with the bolt-work, electro-magnets having electrical connections with the outside of the safe, a circuit-breaker and battery-cup, and an armature connected with the cylindervalve, whereby the excitement of one or the other of said magnets may serve to operate said valve and admit the air to said piston, substantially as described.

4. The combinatiomwith the usual safe boltwork,of an air-chamber, A, an air-pump, and

i a cylinder, B, the piston of which is connected with said bolt-work, said cylinder having communication with said chamber by means of and electro-magnets having electrical-conned tions with a batterycup and. a circuit-breaking mechanism outside of the safe,substantially as described, and for the purposes specified.

FREDERICK SEDGWIGK. Witnesses:

D. H. Fnn'ronsn,

M, M. GRIDLEY. 

